Braiding carrier



. 1,6 ,45 Aug' 91927 A. PETERSEN 38 5 BRAIDING CARRIER Filed Au2:.16, 1922 2 Sheets-Sheet 1 @Kwam Aug. 9,1927. 1,638,455

A. PETERSEN BRAIDING -CARRIER Wl/ld@ L 272 ven or:

. 6 26 of @Ziffer Peersen p y /PM #MMM Patented Auf?. 9,

lVIEN'TS, TO ZENITH THREAD 00M? F BICHIGAN.

ANY, or DETROIT, MICHIGAN-,1A- CORPORATION LBRAITnING CARRIER.

kApplieaticlii flied August4 16, 1925. Serial o. 82 ,`60'.v3l

machine illustratedv in the patents to Peter-l sen, No. i'aiiaia, n'pni 25,1922 and No.'

1,331,672 February ai, i920.

Principal objects of the y' present invention' are to provide a small and light Weight carrier for the bobbins prising ofthe inner sei n j j a minimum number ot lparts ar which, when usedl in machines such asd'is-` closed in the abovev the functions ot the cated carrier, as iv associated with such carrier for sup-porting patents ivill v yperform all usual large Vand compliellasY to provide pai-ts and guiding itin its movements. l vIn the accompanying drawings a previterred embodiment o't' the present invention is illustrated by Way of example and* in such draivings';

Fig'. 1 is a plan view oit one half ofa braid-` ing machine of lr'noivntype having the devices of the present to, certain parts bei oif clearness 'of illust invention applied thereomitted for the salte ration;

Fig'. 2 is rif-vertical diametrical cross section taken substantially on the plane ot li-ne 2 2 oi Figl, 'the' elevation;

Fig. 3 is a plan vi carriers being shown fin eiv'of an improved of bobbin carrier made in accordance with Jthe present invention; Fig. 4 is an edge view of the carrier of' Fig. 3 viewed from such ligure the rightV hand side of Fig. 5 is a vvertical cross section onlthe line 5 5 oIn Fig. 3, omitting the bobbin tension plate.

Fig. 6 isa vert 6 6 of A3;

ical cross section on the line FiO'. 7 is a traomentar vertical cross vsecc Y tion on the line 2 2 of Fig. 1 but to larger scale, the carrier beingshovvnin elevation;

Fig'. 8 is a ragm trating a detector ment ot' the carrier;

Fig. 9 is an elevation il tail a Wheel emplo carrier.

entary detail. vievv illusdevice forming an ele.- andV f lustrating in ide-i yed for supporting the member 20. At the junction of the ineinf Referring to the drawings, thenuineral 1Y indicates a r'otating `suppot comprisin' acylindrical pdrtionQ" forming alring-like member uponA which the carriers for 'the outer series offbobbins are linounted'j, such carriers notb'eing illustrated herein. A. tabley is arranged"onceiitricallywith the inem# berl and is caused to rotate oppositely to .he-lat ter"meinber in yany desired manner known to the art. Upon vthe table 3- a; series of frames 4 are mounted vvliichV provide j ournalsfor the shafts ,of drive rolls 5. These rollsare preferably provided with eniai* hub. members r6 formed; tromftelt or other suitable friction material. Ar stationary supporting disc 7 is arranged concentric with the ring member 2 having a series of .resilient fingers projectingradially from its edge. YThese fingersfseive to support a ring 9 `formed troi'iirub'ber, felt or; other suitable material ,which bears 'against' the several. hubs Gl ofthe drive rolls, causing-such rolls to. rotate on their axesv as tlievtable B is turned. .K I c The support 7 provided at itslouter edge with a rib 10 providingja track 'for the inner supporting rolls ot the carriers hereinafter to be described. `The inner peripheral surface of the cylindrical or ringilike member 2A is provided Wit-h a circumferential groove 1.1 having a lower substantially horizontal wallf12 andan upper Wall 13, A substantially continuous ring or plate 14. of some material having good electricalv conducting properties, such for' example asi brass, is secured` to the inner1 .furface ot' the ring 2 above the groove l1, suitable insulating materialV lbeing interposed between the ring 14 andthe inner surface ot' the member 2. One Vsection orp this ring 111 is removablysecured in position to peiini-t the carriers to be assembled with orV removed `from thej ring 2.V The lower edeje of the ring or plate 14- projects downwardly and overlaps the upperfface 13V of the groove 1l as indicated at 16.

, Thel carriersfofthel inner series of bobbins consist of openframes comprising substantially parallel side members 17, il, the innerendmember 19 and the outer e l bersE 17 and 18 With the outer member 20, laterally projecting ears 21, ,22' are prol-l vided, vthese ears being slotted* horizontally for the reception of supporting wheels 23, 24. Each of these wheels, as shown in detail in Figs. 6 and 9, comprises an annular rim member 24a with which is secured a ring 24b forming one element of a ball race.V

A second annular member 25 is arranged concentrically with the member 24b forming the complemental member of the ball race, and between the parts 24b and 25 a @series of ball bearings 26 are arranged.

' 28 within which a pin 29 provided withan axial bore 32 is secured. This pin projects beyond the boss and supports anti-friction bearings of the type just above described upon which a wheel or roll 30 provided with a beveled peripheral .face 31 is mounted. The beveled surface 31 of the wheel 30 rests upon the upper face of the rib 10 above described, while the lower faces of the wheels 23 and 24 rest upon the bottom wall 12 of the groove 11 in the part 2. The carrier is thus supported upon anti-friction bearings at three points for movement in a circular path. Projecting upwardly from the outer member 20 of the carrier are two pairs of ears 33, 34 respectively and between the respective ears of said pairs retaining rolls 35, 36 are journalled upon suitable supporting pins. Vhen the carrier is properly positioned these rolls lie within the groove 11 and project upwardly behind the lower edge 16 of the plate 14. This plate, in cooperation with these rolls, thus serves to prevent inward radial movement of the carriers and holds the carriers in proper relative relation to the ring 2 and the support 7. The outer member 20 of the carrier is provided with a vertical slot 37 for the reception of a wheel or roll 38 mounted upon a pin 39 and of a diameter such that its lower peripheral element lies in a plane below the plane of the upper peripheral elements of the drive rolls 5. l/Vith this arrangement rotation of the member 3 causes the drive rolls 5 to push the several carriers ahead of them, causing the carriers to revolve about the aXis of the machine in the usual manner.

Each of the side members 17, 18 of the carrier is provided with a vertically elongate bearing slot 40 having a lateral opening 41 adjacent to its lowerend and having the overhanging side wall 42. These bearing slots receive the opposite ends respectively of a bobbin spindle 43 which may be placed within the slots 40 by inserting them laterally through the openings 41. VA bobbin 44 is indicated as mounted upon the spindle 43. The upper surfaces of the side members 17 and 18 are inclined downwardly toward the lateral openings 41 in theL bearing slot-s 40 to guide the ends of the bobbin spindle as the bobbin is placed in operative position.

A plate 45 is secured to a sleeve 45tL journalled to turn relatively to the side members 17, 18 and having an adjustable tension spring 46b normally tending to turn it in a counterclockwise direction as viewed in Fig.

4. This plate preferably terminates in a series of parallel resilient fingers 46 which extend below the bobbin and which serve to support the latter. The spring 46b is normally tensioned sufficiently to support the weight of the bobbin resting upon the lingers 46 and to cause the ends of the bobbin spindle to occupy the upper portions of the slots 40. With this arrangement the weight of the bobbin rests upon the lingers 46,V

providing a braking effect tending to retard rotation of the bobbin and thereby exerting the desired tension upon the yarn Y as the latter is drawn off from the bobbin. As the bobbin decreases in size, the frictional resistance to turning gradually decreases at substantially the same rate that the leverage exerted by the yarn in turning the bobbin is decreased, but it is evident that there is no possibility that the tension will be entirely relieved at any time as is common where the tension spring is merely caused to bear upon the upper surface of the bobbin. The yarn from the bobbin passes through the opening 32 in the pin 29 and from thence to the braiding point, so that special guide means therefor is unnecessary.

The members 17 18 ofthe carrier are provided with aligned bearing openings 47, 48 respectively for the reception of the oppositely directed ends 49, 50 of a bail-like detector finger comprising the shaft 50a, the parallel members 51 and 52 and the transverse member 53. This detector linger is conveniently formed from wire suitably bent and is so arranged that its transverse member 53 lies parallel to the axis of the bobbin and is substantially coeXtensive in length with the thread mass upon the bobbin spindle. A spring 54 surrounds the shaft 50a and tends normally to move the detector member outwardly and away from the bobbin and into Contact with the inner surface of plate 14, this action of the spring being normally opposed by the tension of the yarn which passes over the member 53 on its way to the opening 32. The entire frame of the carrier, as well as the wheels 24, is preferably formed of metal or other suitable electrical conductor, but the retaining rolls 35 are of some insulating material such as indurated fibre or the like. As the detector ings in the metallic members 17 and 18, the

lUU

ill)

detectoris always' connected electrically with the ring member 2.` The `,machine is preferably provided t with some form of electrical stop n iotiom s uch as shown for eX- ample in the patent to Petersen, No. 1,072,984, Septem`ber,9,u1913, and the ring 2 and the plate 14,constitute poles of the elec# trical circuit of thifsstop mechanism. Then during operation one of thel yarns break, the cbrresponding detectorlfinger immediately moves outward into Contact with the plate 14, thiisfcompletingthe circuit and stopping the machine inH a; manner well knownwin the art. As thus arranged, the carrier may be mounted upon anti-friction bearings so` thatfit movesv with the greatest freedom, whilejthe stop motion circuit is completed Without necessitating the employmentof a brush or similarelement which wouldretarcl thefree Amovement of the carrier. Moreover, `when the f device herein shown is employed inja machine ofY the kind shown in they patent to Petersen, No. 1,413,773 above referred to, it is unnecessary to provide a detectorwforindicating exhaustion of the thread upon the bobbin as the measuring apparatus disclosed in such patent may also be relied upon to stop the machine when the yarn carried by the bobbins of the inner series has been exhausted. The carrier as thus constructed'` is .extremely light in weight and of simple construction and by arranging the bobbinv inthe manner shown so that its spindle is perpendicular to the central radial line of the ca'rrier,'it is possible to decrease the usual stroke of the thread lever for the outer series of bobbins,

thus minimizing the vibration of the parts As above stated, the spring lingers 46 not only constitute tension means, but also serve to support the bobbin in operative position, thus permitting the employment of the slots 40 with their lateral openingsA 41 which allow the ready insertion in and removal of the bobbins from the carriers without necessitating the manipulation of catches or other retaining means. As a further element of simplicity in the structure, the double function of the plate 14 may be mentioned, such late not only serving as retaining means or the carriers but also as one of the elements of the electrical circuit.

Nhat I claim and desire to secure by Letters Patent of the United States is:

1. A braiding machine comprising a carrier having a frame, said frame being provided with vertically elongate bearing slots for the ends of a bobbin spindle, and a resilently and pivotally supported member carried by the frame, said member being inclined to the horizontal and havingr its lower end disposed below the bobbin thereby constituting the sole support for the latter.

2. A braiding machine having in combination a ,carrier provided, with vertically elongate journal slots for a bobbin, said slots havingf'lateral` entrance openings, and resilientfmeansafor retaining the bobbin in operative position within the journal'slots, said resilient means being movable only in a predetermined path and being constructed and;A arranged to support and to guide the bobbin While the latter is beingA advanced `intofoperative'relation tothe journal slots.

entrance c openings into said guideways.

4. A braiding machine `having in combination a carrier provided with vertically elongate bearing slots in which the opposite ends respectively of a bobbin spindle may turn freely, said slots have lateral entrance openings, guides inclined downwardly toward said entrance openings, and resilient means normally supporting the weight ot the bobbin by engagement with the peripheral sur- 'face of the latter, said resilient means comprising a member pivotally mounted to turn about an axis, transversely spaced from the axis of the bobbin spindle.

5. A braiding machine comprising a oar` rier having vertically elongate slots for the reception of the opposite ends of a bobbin spindle, one at least of said slotshaving a lateral entrance opening, and a pivoted plate divided at its free end to form a series ot resilient fingers constructed and arranged to underlie and to constitute the sole support for a thread mass mounted upon the spindle.

6. A braiding machine having in combination a carrier comprising an open frame having parallel side members, each ot said members having a vertically elongate bearing slot provided with a lateral opening adjacent to its lower end for the insertion of a bobbin spindle, and a pivotally supported plate underlying the peripheral Vsurface of the bobbin, said plate having spaced bobbin engaging elements and resilient means normally retaining said plate in position to support the weight of the bobbin. y

7. A braiding machine comprising a carrier arranged to move in a horizontal, cir.- culary path, a pair of lsupporting wheels at the outer end of the carrier arranged to turn about Vvertical axes, and a supporting wheel at the inner end of the carrier turning about a substantially radial axis, bearings for said wheels, the bearing for the inner wheel having a central opening therethrough for the passage ofthe thread.

8. A braiding machine comprising a carrier arranged to move in a circular path, a bobbin supported by the carrier and a supporting wheel for said carrier, said wheel comprising a rim member, and an annular hub member, said latter member' constituting an element of a ball race, a second annular member fixed to the carrier and concentric with said lirst annular member, said second member constituting the other element of the ball race, and a series of balls interposed between said annular' members, the thread from the bobbin passing through said annular hub.

9; A braiding machine comprising a braiding carrier moving in a circular path', said carrier having means for supporting a bobbin with its perpendicular tothe central radial line of the carrier, a thread break detector pivoted to the carrier to swing about an axis parallel to that of the bobbin and having a thread engaging element eX- tending longitudinally of the bobbin and substantially coeXtensive in length therewith, and spring means normally tending to move said detector in opposition to the tension of the thread.

l0. A braiding machine having in combination a braiding carrier comprising an open frame provided with oppositely disposed aligned bearings for a bobbin spindle, a detector member having elements pivotally supported in bearing openings parallel to the bobbin spindle bearings respectively and an elongate member extending longitudinally of the bobbin and substantiallyl co-extensive in length therewith and parallel with the axis thereof for engagement with the thread as it is-drawn from the bobbin, and spring mea-ns normally tending to move said detector member in opposition to the tension of the thread whereby to complete an electrical circuit upon breakage of the thread.

Signed by me at Boston7 Massachusetts,

this ninth day of August, 1922.

'ANKER PETERSEN. 

